THC, otherwise known as Tetrahydrocannabinol, is the name assigned to the active chemical in Cannabis that triggers hallucinogenic effects. For the most part, it’s present in all strands; though its strength varies — Hemp, which is used in CBD, for example, has a THC count of less than 1%; while Marijuana, which is used for recreation, can contain up to 30%.

But how does it work? Well, the human body contains a number of receptors that are overly sensitive to cannabinoid chemicals, much like THC. Excessive consumption of the chemical overwhelms these receptors, which has alters various cognitive functions, ranging from concentration and coordination to memory and pleasure. It also affects time perception.